PeterMc

This is the follow up post to all my previous posts re the Mercer inverter.
Mustek Cape Town (the importers of the Mecer range of inverters) have given me the most incredible service and have ultimately replaced the unit after agreeing that it was faulty.
The replacement inverter (the same model but a slightly newer version) integrates perfectly with my solar panels. This newer version is identified by the green circular light around the “battery” switch which the previous one did not have on it.
The only problem with this unit is how the switchover from solar to mains voltage occurs - on setting 3 the PV panels are used to charge the battery but the switchover to mains charging only occurs when the battery hits zero percent - I am not happy with running the lithium battery to this level. 
I have thus changed the setting to 1 which uses mains to charge and then swops to PV when load shedding is active.
I also manually disconnect the mains during the day and then reconnect in the evening when the PV panels are not keeping the battery fully charged.
Hopefully this post will be of assistance to other users in the future.